<!-- <strong></strong>で囲う -->
<p>この段落は普通の表示</p>
<p><strong>この段落は強調して表示</strong></p>
External CSS
This Pen doesn't use any external CSS resources.
External JavaScript
This Pen doesn't use any external JavaScript resources.
<!-- <strong></strong>で囲う -->
<p>この段落は普通の表示</p>
<p><strong>この段落は強調して表示</strong></p>
This Pen doesn't use any external CSS resources.
This Pen doesn't use any external JavaScript resources.